２００１年７月，布什政府向公众透露了研制对抗敌方弹道导弹的防御武器计划，在该项计划中，激光技术将在任何部署的系统中起关键作用。从广义上讲，导弹防御系统包括各种设法在不同地点摧毁弹道导弹的武器，即导弹的火箭引擎起动时，弹头在太空靠惯性飞行时，以及在最后的飞 In July 2001, the Bush administration revealed to the public its plan to develop a defensive weapon against enemy ballistic missiles in which laser technology would play a key role in any deployed system. In a broad sense, the missile defense system includes a variety of weapons that seek to destroy ballistic missiles at different locations, namely, when the missile’s rocket engine is started, the warhead is flying in space and the last fly